fond of or given to argument and dispute; disputatious; contentious

The law students were an unusually argumentative group.

of or characterized by argument; controversial

an argumentative attitude toward political issues.

Law . arguing or containing arguments suggesting that a certain fact tends toward a certain conclusion.

adjective

agreeable , complaisant , friendly

adjective

belligerent , combative , contentious , contrary , controversial , disputatious , factious , fire-eating , having a chip on one’s shoulder , litigious , opinionated , pugnacious , quarrelsome , salty , scrappy , spiky , touchy , eristic , polemic , polemical , agonistic , dialectical , indicative , ratiocinative , rhetorical , shrill , testy